able to see the growth on the slant surface. The color of the medium changed to an intense Prussian blue therefore this organism was able to use the citrate as a sole carbon and energy source. Another test we did in class was the amylase -starch hydrolysis
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characteristic. There were other methods utilized in lab as well: the Mannitol Salt and Eosin Methylene Blue Agar and the tryptic soy broth experiments. Oxygen reaction (aerobic vs. anaerobic)‚ glucose fermentation‚ oxidase reaction‚ the catalase test‚ urea hydrolysis‚ nitrate reduction experimentation‚ Kligler’s Iron Agar‚ the SIM medium test and lastly the IMViC series of tests. All the biochemical tests were carried out in properly supervised manner to compare the unknown bacteria to the six known that were
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Biology Revision summer 2012 1-Characteristics of living organisms Nutrition- taking in of nutrients which are organic substances and mineral ions ‚ containing raw materials or energy for growth and tissue repair ‚ absorbing and assimilating them . Excretion- the removal from organisms of toxic material‚ the waste products of metabolism and substances in excess of requirement . Respiration- the chemical reactions that break down the Sensitivity- The ability to detect or sense changes in the
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Physiology Linder Unit 1 Possible Essay Questions Chapter 1 1. Describe the concept of homeostasis. Explain how negative feedback and positive feedback loops effect the homeostatic condition. Use examples to explain your answer. Homeostasis can be described as maintaining a relatively internal environment even though the external environment is variable. Negative feedback loops effect the homeostatic condition by controlling it by bringing you back to your set point
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The Role of Agarase in Agar-Degrading Bacteria Abstract Agar-Degrading (agarolytic) Bacteria is physiological class of bacteria capable of utilising agar as a sole carbon source. This ability is made available by the use of agarases - enzymes which break down agarose into oligosaccharides. This physiological class branches through genii‚ regardless of Gram Stain status or morphology. Through a review of scientific literature we can find identification methods‚ optimum conditions and the
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Chapter 8 Metabolism Thousands of biochemical reactions All require Metabolism transforms matter & energy & obeys the laws of physics Several steps from starting reactant to product Metabolic Pathway 3 steps Each is a separate reaction carried out by a unique and specific enzyme Catabolic Break down complex molecules into simpler ones Release energy Anabolic Build molecules up Consume energy Energy The capacity to cause change Many forms in which some we can use to do work Convert energy from one
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1. Define science – Science is the development of concepts about the natural world ‚ often by using the scientific method 2. Define multicellular organism - are those organisms containing more than one cell‚ and having differentiated cells that perform various functions. 3. Identify the 3 domains of living things. Which domains include one-celled organisms with no nucleus? a) Organized‚ Homeostatic & Reproduce. b) Bacteria & Archaea 4. Modern taxonomists (scientists
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3.2 Hydrolysis 4 Nomenclature and formulas 5 Examples of oxides 6 See also 7 References Formation Main article: corrosion Due to its electronegativity‚ oxygen forms stable chemical bonds with almost all elements to give the corresponding oxides. Noble metals (such as gold or platinum) are prized because they resist direct chemical combination with oxygen‚ and substances like gold(III) oxide must be generated by indirect routes. Two independent pathways for corrosion of elements are hydrolysis and
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C H A P T E R 5 Basic Concepts from Organic Chemistry 5.1 | INTRODUCTION The fundamental information that environmental engineers and scientists need concerning organic chemistry differs considerably from that which the organic chemist requires. This difference is due to the fact that chemists are concerned principally with the synthesis of compounds‚ whereas environmental engineers and scientists are concerned‚ in the main‚ with how the organic compounds in liquid‚ solid‚ and gaseous wastes
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January 1999 B io Factsheet Example glucose fructose galactose Number 39 Carbohydrates: Revision Summary Carbohydrates contain 3 elements: Carbon (C)‚ Hydrogen (H) and Oxygen (O). Thus‚ if we remove water from carbohydrates‚ all that remains is carbon. Carbohydrates can be divided into 3 categories; monosaccharides‚ disaccharides and polysaccharides (Table 1). Table 1. Structure of monosaccharides‚ disaccharides and polysaccharides Category Monosaccharide (made of 1 sugar molecule)
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